The jam jar is made of high-quality glass body and metal lid, environmentally friendly materials, and odorless. The thick jam jar is well made, with an overall thickened body that is not easily broken. The metal lid with red and white color scheme is not easy to rust, anti mold and moisture-proof, and has good sealing performance, which extends the shelf life of the physical product. 280ml/9oz capacity pack jam jars, can be used for canned food, cooking sauces and pastes, herbs and spices, confectionery, specialty desserts and jams, chutneys, honey, marmalade and more. The polygonal bottle body design not only saves storage space, but also allows them to be pieced together into various patterns, adding fun to life.